A Marana subdivision with a Tucson mailing address
The recorded plat for Hartman Vistas lists lots 1 through 353 and places the subdivision in the Town of Marana. Homes for sale in the area often show a Tucson mailing address with ZIP 85742.
That mismatch matters for permits. A Marana address means the Town of Marana, not the City of Tucson, handles building permits. Start with Development Services at (520) 382-2600. Plumbing work in the Town follows the 2024 International Plumbing Code with local amendments (Town Code 7-1-2).
Hartman Vistas fact sheet
| Topic | What we can say | Where it comes from |
|---|---|---|
| Lots | 353 platted lots | Recorded plat, map 55, page 042 |
| Jurisdiction | Town of Marana, Pima County | Recorded plat description |
| Water system | System 10-329 | Town of Marana water hardness table, May 2026 |
| Hardness | 3 to 6 grains per gallon, average about 5 (56 to 100 ppm) | Town of Marana water hardness table, May 2026 |
| Same water system | Hartman 10, Oasis Hills, Oshrin Park, Cortaro Crossings, Shady Grove, Red Rock Village, Willow Ridge | Town of Marana water hardness table, May 2026 |
| Sewer provider | Pima County Regional Wastewater Reclamation, (520) 724-6609 | Town of Marana sewer information |
| Home age and plumbing materials | Not verified here | Unknown |
Plumbing problem in Hartman Vistas?
Call and describe what you see. We will talk through the next step.
Softer water, different priorities
An average near 5 grains per gallon is the lowest in the Town's table. Scale still forms, but more slowly than in the 12 grain areas. Some households here may find they need less water treatment than neighbors elsewhere in Marana.
Before buying a softener, test your own water. The Town notes that you should check which unit a softener uses, ppm or grains per gallon. Our water softener and filtration page walks through the choices.
Problems that soft water does not explain
Slow drains
Grease, soap and hair cause clogs, not water hardness. Drain cleaning addresses the cause.
Weak pressure at one tap
That points to an aerator or cartridge at that fixture rather than the whole supply.
A sewer backup
This depends on whose pipe is blocked, the lateral you maintain or the public main. A camera inspection shows where.
Sewer ownership in Hartman Vistas
The Town says Pima County Regional Wastewater Reclamation serves Hartman Vistas. You maintain the lateral that links your house to the public main. If the backup is in the main, the county is the contact at (520) 724-6609.
For other areas, see the Marana service areas page.
Questions from Hartman Vistas homeowners
The recorded plat places Hartman Vistas in the Town of Marana. Many listings use a Tucson mailing address with ZIP 85742, so confirm permit questions with the Town.
The Town's May 2026 table lists system 10-329 at 56 to 100 ppm, which is 3 to 6 grains per gallon, with an average near 5.
It depends on the household. Test your own water, think about how scale affects you, and compare options before buying.
The Town says Pima County Regional Wastewater Reclamation serves Hartman Vistas. The county's number is (520) 724-6609.
If your home is in the Town of Marana, start with Development Services at (520) 382-2600. They can confirm which authority applies.
Yes. Call (855) 575-2890 and tell us your street and the symptoms.